Wyoming State Senate seat · lines in effect since 2022

Wyoming Senate District 31

A district of about 12,000 people, 24% of adults with a bachelor's degree. It votes R+33.4 relative to the nation for president.

Evie Brennan (R)Next election Nov 5, 2030The 2026 race →

Where it sits among all 31 seats

Every Wyoming State Senate seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.

R+33.49th most
Democratic
Most DemocraticMost Republican16th seat · the majority lineDistrict 31

Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET

Every race on these lines

Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.

20202026
U.S. SenateR+33.6No race
Wyoming State SenateNo raceR+36.4

Outlined: the race for this seat itselfBlank: no race that year

Source: 99chambers results archive: precinct results allocated to current lines; 2026: civicAPIUpdated Nov 7, 2026, 3:01 PM ET

Who lives here, compared

Grey bars show the spread of all 31 seats. Small marks are other seats in Wyoming. The black marker is District 31.

Adults with a bachelor's degree24% 17th pct · 26th of 31 in WY

Lower than 83% of seats.

White adults without a degree57% 40th pct · 19th of 31 in WY

Lower than 60% of seats.

Hispanic residents17% 90th pct · 4th of 31 in WY

Higher than 90% of seats.

Black residents5% 97th pct · 2nd of 31 in WY

Higher than 97% of seats.

Asian residents0% 50th pct · 16th of 31 in WY

Higher than 50% of seats.

People per square mile97 67th pct · 11th of 31 in WY

Denser than 67% of seats.

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET

Who has held it

These lines took effect in 2022.

  1. Evie Brennan (R)
    2027– · Won 2026 by 36.4
  2. Evie Bren (R)
    2023–2027 · Won 2022 by 92.4

Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)